<!DOCTYPE HTML> <html> <!-- Test that calling setVisible("false") on an iframe that has an open activity causes its priority to change. --> <head> <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> <script type="application/javascript" src="../browserElementTestHelpers.js"></script> <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/> </head> <body> <script type="application/javascript;version=1.7"> "use strict"; SimpleTest.waitForExplicitFinish(); browserElementTestHelpers.setEnabledPref(true); browserElementTestHelpers.enableProcessPriorityManager(); function runTest() { var os = SpecialPowers.Cc["@mozilla.org/observer-service;1"] .getService(SpecialPowers.Ci.nsIObserverService); var iframe = document.createElement("iframe"); iframe.setAttribute("mozbrowser", true); iframe.src = browserElementTestHelpers.emptyPage1; var childID = null; Promise.all([ expectOnlyOneProcessCreated("FOREGROUND").then(function(chid) { childID = chid; }), expectMozbrowserEvent(iframe, "loadend") ]).then(function() { var p = expectPriorityChange(childID, "BACKGROUND_PERCEIVABLE"); // We simulate opening an activity os.notifyObservers(null, "activity-opened", childID); // We wait until mozbrowserloadend before calling setVisible, because // setVisible isn't available until mozbrowser has loaded. In practice, that // means we can call setVisible once we've gotten /any/ mozbrowser event. iframe.setVisible(false); return p; }).then(function() { var p = expectPriorityChange(childID, "BACKGROUND"); // Now we simulate closing an activity os.notifyObservers(null, "activity-closed", childID); return p; }).then(SimpleTest.finish); document.body.appendChild(iframe); } addEventListener("testready", runTest); </script> </body> </html>